n=int(input())
if 599>=n>=400:
    print(8)
elif 799>=n>=600:
    print(7)
elif 999>=n>=800:
    print(6)
elif 1199>=n>=1000:
    print(5)
elif 1399>=n>=1200:
    print(4)
elif 1599>=n>=1400:
    print(3)
elif 1799>=n>=1600:
    print(2)
elif 1999>=n>=1800:
    print(1) n=int(input()) n int(input()) int input() input if 599>=n>=400:
    print(8)
elif 799>=n>=600:
    print(7)
elif 999>=n>=800:
    print(6)
elif 1199>=n>=1000:
    print(5)
elif 1399>=n>=1200:
    print(4)
elif 1599>=n>=1400:
    print(3)
elif 1799>=n>=1600:
    print(2)
elif 1999>=n>=1800:
    print(1) 599>=n>=400 599>=n 599 n 400 print(8) print 8 elif 799>=n>=600:
    print(7) 799>=n>=600 799>=n 799 n 600 print(7) print 7 elif 999>=n>=800:
    print(6) 999>=n>=800 999>=n 999 n 800 print(6) print 6 elif 1199>=n>=1000:
    print(5) 1199>=n>=1000 1199>=n 1199 n 1000 print(5) print 5 elif 1399>=n>=1200:
    print(4) 1399>=n>=1200 1399>=n 1399 n 1200 print(4) print 4 elif 1599>=n>=1400:
    print(3) 1599>=n>=1400 1599>=n 1599 n 1400 print(3) print 3 elif 1799>=n>=1600:
    print(2) 1799>=n>=1600 1799>=n 1799 n 1600 print(2) print 2 elif 1999>=n>=1800:
    print(1) 1999>=n>=1800 1999>=n 1999 n 1800 print(1) print 1 n=int(input()) int(input()) n
n=int(input())
if 599>=n>=400:
    print(8)
elif 799>=n>=600:
    print(7)
elif 999>=n>=800:
    print(6)
elif 1199>=n>=1000:
    print(5)
elif 1399>=n>=1200:
    print(4)
elif 1599>=n>=1400:
    print(3)
elif 1799>=n>=1600:
    print(2)
elif 1999>=n>=1800:
    print(1)